1201113020123 has 2 divisors, whose sum is σ = 1201113020124. Its totient is φ = 1201113020122.

The previous prime is 1201113020113. The next prime is 1201113020171. The reversal of 1201113020123 is 3210203111021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201113020123 - 2⁶ = 1201113020059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201113020113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600556510061 + 600556510062.

It is an arithmetic number, because the mean of its divisors is an integer number (600556510062).

Almost surely, 2^{1201113020123} is an apocalyptic number.

1201113020123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201113020123 is an equidigital number, since it uses as much as digits as its factorization.

1201113020123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1201113020123 its reverse (3210203111021), we get a palindrome (4411316131144).

The spelling of 1201113020123 in words is "one trillion, two hundred one billion, one hundred thirteen million, twenty thousand, one hundred twenty-three".